tu_one = ()
tu_two = (1,)
tu_three = ('t', 'u', 'p', 'l', 'e')
tu_four = (0.3, 1, 'python', True)


tuple_null = tuple
print(tuple_null)
tuple_str = tuple('abc')
print(tuple_str)
tuple_list = tuple([1, 2, 3])
print(tuple_list)